// pages/history/history.js
const historyApi = require('../../api/history');
const userUtil = require('../../utils/user');

Page({
  data: {
    history: [],
    loading: false
  },

  onLoad() {
    this.loadHistory();
  },

  onShow() {
    this.loadHistory();
  },

  // 加载历史记录
  async loadHistory() {
    if (!userUtil.isLogin()) {
      this.setData({ history: [] });
      return;
    }
    
    this.setData({ loading: true });
    try {
      const historyList = await historyApi.getHistoryList();
      // 格式化时间显示
      const formattedHistory = (historyList || []).map(item => {
        const readTime = item.readTime || '';
        let timeStr = '';
        if (readTime) {
          try {
            const date = new Date(readTime);
            const now = new Date();
            const diff = now - date;
            const days = Math.floor(diff / (1000 * 60 * 60 * 24));
            const hours = Math.floor(diff / (1000 * 60 * 60));
            const minutes = Math.floor(diff / (1000 * 60));
            
            if (days > 0) {
              timeStr = `${days}天前`;
            } else if (hours > 0) {
              timeStr = `${hours}小时前`;
            } else if (minutes > 0) {
              timeStr = `${minutes}分钟前`;
            } else {
              timeStr = '刚刚';
            }
          } catch (e) {
            timeStr = readTime.substring(0, 10);
          }
        }
        return {
          ...item,
          readTime: timeStr
        };
      });
      this.setData({ history: formattedHistory });
    } catch (error) {
      console.error('加载历史记录失败:', error);
      wx.showToast({
        title: error || '加载失败',
        icon: 'none'
      });
      this.setData({ history: [] });
    } finally {
      this.setData({ loading: false });
    }
  },

  // 跳转到详情
  goToDetail(e) {
    const contentId = e.currentTarget.dataset.id;
    wx.navigateTo({
      url: `/pages/detail/detail?id=${contentId}`
    });
  },

  // 清空历史
  async clearHistory() {
    if (!userUtil.isLogin()) {
      wx.showToast({
        title: '请先登录',
        icon: 'none'
      });
      return;
    }
    
    wx.showModal({
      title: '提示',
      content: '确定要清空历史记录吗？',
      success: async (res) => {
        if (res.confirm) {
          try {
            await historyApi.clearHistory();
            this.setData({ history: [] });
            wx.showToast({
              title: '已清空',
              icon: 'success'
            });
          } catch (error) {
            wx.showToast({
              title: error || '清空失败',
              icon: 'none'
            });
          }
        }
      }
    });
  }
});